Features: 1Triangular spring hinge high spring strength opening angle of 80 easy to use. 2Wide range of uses suitable for folding bed folding sofa lift door cabinet door etc. 3Each kit includes a left spring hinge and a right spring hinge easy to install and assemble. 4Using highquality iron material it is strong and durable no rust no corrosion. 5Concealed design simple and practical exquisite craftsmanship it is the perfect furniture accessory. Specification: Item Type: Spring HingeMaterial: IronColor: BlackWeight: Approx. 478g / 16.9ozProduct Size: Approx. 15x5cm / 5.9x2.0inScope of Application: Furniture Accessories etc. Package List: 2 x Spring Hinge Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.